4 public-domain matches

Coumarin

Cover of Coumarin and Its Derivatives

Coumarin and Its Derivatives

Unknown author

Cover of US Patent 2600375: Amino-coumarin-sulfonates

US Patent 2600375: Amino-coumarin-sulfonates

Ciba Ltd

Cover of US Patent 2601204: Process of lowering blood prothrombin level and lengthening clotting time with methylenebis-hydroxy coumarin

US Patent 2601204: Process of lowering blood prothrombin level and lengthening clotting time with methylenebis-hydroxy coumarin

Wisconsin Alumni Res Found

Cover of A method for the detection of small quantities of coumarin

A method for the detection of small quantities of coumarin

H. J. Wichmann